Gage-cock.



N. G. OOPLEY.

GAGE COCK.

APPLICATION TILED AUG. 30, 1911.

1,034,085. Patented July 30, 1912.

71527755555.- v I v J72ZfE. 7

A xfimmu 9. (/6 M an Kid/0L UNITED STATES PATENT orrron;

NOIBERTO Gr. COPLEY, OF FOSTORIA, 61310.

GAGE-COCK.

Specification of Letters Patent. Patented July 30, 1912.

Application filed August 30, 1911. Serial No. 646,924.

To all whom it may concern:

Be it known that I, NomnR'ro G. COPLEY, a citizen of the United States, residing at Fostoria, in the county of Seneca and State of Ohio, have invented a certain new and useful Improvement in Gage- Cocks, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings.

The object of this invention is to provide a very simple, effective and durable gage cock for indicating the water level in steam boilers.

A peculiar characteristic of my gage cock is that there is no valve, and, as a result of this, I save leakage and do away with the necessity for the periodic regrinding or renewing of parts which is lnhe'rent' in the ordinary valved cock.

In accomplishing the desired result, Iprovide a movable tubular member closed at its inner end and adapted to extend from'outside the boiler through a stuiiing box into a space communicating with the interior of the boiler. This tubular body has an external outlet and has an entrance orifice which is normally on the outer side ofthe packing in. the stuffing box. \Vhen the tubular body is shoved inward, the orifice comes into communication with the wateror steam and allows it to escape through the bore and the exit opening, thus indicating the-condition at that level. stuffing box casing is arranged to guide the tubular body and also to provide a support for a lever which is adapted to shove the tubular body inward, While a spring is provided for insuring its outward return.

My invention may be conveniently sum marized as consisting of the means above referred to, and hereinafter more fully described, by which-I accomplish the desired result.

In the drawings, Figure 1 isa side elevation of my gage cock; Fig. 2 is a vertical longitudinal section of the same, and Fig.

3 is a plan.

Referring to the parts by ref'erencenumorals, 10 indicates a portion of the shell of a boiler or water column and 11 a nipple secured thereinto, this nipple having a usual thread 12 and an angular or nut-like portion 13, by which it may be turned. The nipple has a tubular bore 1 1-, which is re duced near the outer end, as shown at 15.

A bracket secured on the- The extreme outer end of the nipple is prcferably countersunk, as shown at 16. On the outer side of this outer end portion are provided threads 17. Screwing onto these threads is a suitable cap 18, preferably coun tersunkv opposite to the seat 16 and between the two seats thus provided is a suitable packing 20,-the' nipple, cap and packing thus constituting a stuffing box.

Mounted on the bodyfot the nipple ll between the nut 13 thereon and the stuffing box-cap is a bracket This bracket embraces the nipple and is clamped by a suitable screw Qtipassing through ears of the bracket. The bracket extends outwardly approximately substantiall parallel with the axis of the bore and at its outer end has a projecting port-ion 27, which has an apcrture 29 alining with the bore of the nipple. Slidably mounted in the stuffing box and in the aperture 29 is a partially tubular plunger which may open or close communication with the interior of the boiler, and which willnow be described.

The slidable, tubular member or plunger above referred to is conveniently made into two pieces 30 and 31 rigidly secured toether; As shown, the piece 30 is around bar of metal closed atits inner end "and screw threaded at its outer end into a seat in the inner end of the piece 31. The piece 31 has a lateral extension 32 adjacent to its inner end and through this extension is a bore 35 communicating with a bore 36 in the outer portion of the part 30. One or more admission openings 37 are provided through the wall of the bar 30 into the inner end of the bore 36. By forming the lunger of the two parts described, it may e constructed economically. I

With the parts as shown in the drawings,

any escape of water orsteam from the boiler is prevented by the packin about the bar 30. If, however, the tubu ar member be shoved inward to car r. the openings 37 in sideof the reduced here 1.5, an exit for water or. steam is immediately provided through that opening and through the bores S6 and 35, thus indicating the conditionof steam or water at that levelf To efiici'ently operate the plunger Ipro: vide a suitable bell crank lever 40. ThlS le ver is pivoted at 41 to ears on the bracket25 and its short arm 42 projects downwardly through an opening-4C3 in that bracket into a seat 45 in the outer member of the plunger. The long arm 46 of the bell crank may be provided at its end with an eye 47 for the attachment of an operating chain or wire.

50 indicates a spring which is coiled around the stud ll and has one arm bearing against the bracket and the other arm agalnst the under side of the bell crank arm 46, thus tending to maintain the parts in the-If,

positionshown in the drawings.

When, the gage cock is in place, the parts are normally held by the spring so that exit gives great convenience of operation, and

I the spring insures proper return of the slidable in the bore,

screw threaded connection with the first parts. I

Having thus described my invent-ion, what I claim is i 1. In a device of the character described,

the combination of a nipple, a bracket carried thereby, a tubular plunger 'slidable in the nipple and guided by the bracket, said plunger havingtwo separable parts, one and the other having a mentioned part and a lateral opening communicating with the interior of the other member, the memberwith the lateral opening having an extension engaged by the bracket, and an operatingllever carried by,

the bracket and engaging such member,

2. In a gage cook, the combination of a nipple having abore,'a cap screw-threaded onto the outer end of the nipple, a bracket embracing the nipple onthe inner side of said cap, said bracket extending outwardly and being provided with an eye, a movable plunger occupying the bore and said eye,

v said plunger having closed inner and outer intermediate bore with an entrance opening through the wall of the plunger and an exit opening, and a bell crank pivoted to the bracket and having an ends and having an allowing the es-- The bell crank slid ably mounted Witnesses arm engaging the plunger between the bracket and cap.

3. In a-gage cock, the combination of a nipple having an externalthrcad and an'angular exterior whereby it may be secured in place, a cap screw-threaded on the outer end of the nipple, packing between the outer end of the nipple and the inner face of the cap, a bracket clamped about the body of" the nipple between the angular exterior and the cap and extending outwardly and pro vided with an eye'alining with the opening through the cap, a plunger slidablyvmount and in the stuifing box pro;

ed in said eye vided by the nipple, cap and packing, said plunger having a central bore, an openm adjacent to the stuiiing box through the we l of the plunger into the bore, a discharge nipple having an opening communicatin with the other end of the bore, a bell crank lever pivoted to said bracket and having an arm occupying a seat in the plunger, and a spring acting on said bell crank lever and tending to hold it with the plunger in the outermost position. r

4. In a gage cock, the combination of a nipple having an external thread at its inner end, a cap screw-threaded on the outer end ofthe nipple, packing betwech the 'outer end of the nipple and the inner face of the cap, a bracket clamped about the body of the nipple and provided with an eye alining withthe opening through the cap, a plunger having an inner member in the packing and a connected outer member slidably mounted in said eye, said plunger having communicating bores in its two parts, opening adjacent to the stulling box through .the wall of the inner part of the plunger into the bore, a discharge nipple on the outer part of the plunger having an opening connipmicating with the other end of the b'ore, a bell crank pivoted to said bracket and having an arm occupying a scat in the outer part of the plunger, and a sprin bearing agamst the bracket and bell crane and acting on said bell crank to hold it normally with the plunger in the outermost position.

In testimony whereof, I hereunto aflix my signature in the presence of two witnesses. NOIBERTO Gr. COPLEY.

E. A. Rooms, M. M; Pnnrs. 

